USER AGENT PARSER

User Agent Parser

Parse and analyze user agent strings to extract browser, OS, and device information

User Agent String

Example User Agents

Chrome on Windows

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36

Firefox on macOS

Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:89.0) Gecko/20100101 Firefox/89.0

Safari on iPhone

Mozilla/5.0 (iPhone; CPU iPhone OS 14_6 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.1 Mobile/15E148 Safari/604.1

Chrome on Android

Mozilla/5.0 (Linux; Android 11; SM-G991B) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.120 Mobile Safari/537.36

About User Agent Strings

What is a User Agent?

A user agent string is sent by web browsers to identify the browser, operating system, and device to web servers and websites.

Use Cases

Web analytics, responsive design, feature detection, security analysis, and debugging browser-specific issues.

Components

User agents contain information about the browser name and version, rendering engine, operating system, and device characteristics.

Privacy Note

User agents can be used for fingerprinting. Modern browsers are reducing the information exposed to protect user privacy.

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